A complex of thunderstorms was located over Central Texas early Sunday morning as an upper level disturbance was moving northeast across this area. Outflow winds from this activity left a wind shift boundary across South-Central Texas along the Balcones Escarpment of the Hill Country around 12Z Sunday morning. This outflow boundary continued to slowly move southward into South Texas through the morning hours.Another upper level disturbance was moving east across Northern Mexico and Southwest Texas during the morning hours. As this system approached South Texas, additional thunderstorms formed along the southward moving boundary. An extensive area of thunderstorms was located from Southeast Texas to near San Antonio by late morning.The airmass over South Texas became strongly unstable (CAPE values from 2500-3000 J/kg) during the afternoon as temperatures rose into the upper 80s over the Coastal Bend to the upper 90s near the Rio Grande.  Dewpoint temperatures were also high across the area with readings in the lower 70s along the coast to the upper 60s over the eastern portions of the Rio Grande Plains.With the approach of the upper level disturbance, the shear became stronger over South Texas. The surface winds over the Coastal Bend were 25 to 30 mph from the east-southeast during the latter half of the afternoon. (0-6 km shear was 50-55 knots over the Coastal Bend and 0-1 km Storm Relative Helicity was 200-250 m2/s2).  The atmospheric environment over South Texas was favorable for the development of supercells. Scattered severe thunderstorms forming along the boundary moved into the Victoria Crossroads region during the middle afternoon hours between 330 and 530 PM.  An intense thunderstorm developed on the southwest edge of the complex of thunderstorms over northern Live Oak County around 345 PM. This thunderstorm quickly became severe as it organized into a supercell just east of the community of Three Rivers.  NWS Doppler radar in Corpus Christi showed the development of a hook echo with this thunderstorm around 4 PM. Hail up to the size of quarters along with a funnel cloud was reported with this storm as it moved east from Three Rivers to near Ray Point in east-central Live Oak County. The storm weakened by 5 PM as it moved into central and southern portions of Bee County.Another severe thunderstorm quickly developed over southern Live Oak County, west of Lake Corpus Christi at 5 PM. The storm produced nickel to golf ball sized hail from Lagarto to Mathis between 530 and 600 PM. The NWS Doppler radar indicated the storm was developing a hook echo near Lagarto around 530 PM. This supercell thunderstorm continued to move to the east-southeast along the Nueces River into Nueces County and eventually the western and southern portions of the Corpus Christi metropolitan area.  The storm moved into the southern sections Corpus Christi between 725 and 740 PM, where numerous hail reports were received ranging from quarter to golf ball size with the largest hail around 2 inches in diameter.  The severe thunderstorm continued its trek to the east-southeast into extreme Northeast Kleberg County and the coastal waters offshore from the Padre Island National Seashore before finally dissipating around 9 PM. Another severe thunderstorm developed to the north of this activity over Refugio County around 545 PM and moved southeast toward the coast around 715 PM.The intense supercell thunderstorm, that formed west of Lake Corpus Christi and eventually moved into Corpus Christi, had the radar appearance of a storm capable of producing a tornado several times during its life cycle. However, outflow winds from the thunderstorm appeared to stay far enough ahead of the low level circulation to prevent tornadogenesis from occurring. Also, slightly more stable near-surface conditions (cooler temperatures) existed over the Coastal Bend behind the seabreeze boundary. This factor may also have precluded tornado development with this supercell.

Hail in NUECES, TEXAS
From 08-MAY-05 18:25:00 to 08-MAY-05 18:25:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.00 
Reported by: NWS EMPLOYEE(OFF DUTY)

Reported by NWS employee at Weber and Saratoga.

Hail in ARANSAS, TEXAS
From 08-MAY-05 18:25:00 to 08-MAY-05 18:25:00 (CST)
Location: ROCKPORT
Magnitude: 0.75 
Reported by: DEPT OF HIGHWAYS

Thunderstorm Wind in ARANSAS, TEXAS
From 08-MAY-05 18:25:00 to 08-MAY-05 18:25:00 (CST)
Location: ROCKPORT
Magnitude: 52 EG
Reported by: DEPT OF HIGHWAYS

Hail in NUECES, TEXAS
From 08-MAY-05 18:27:00 to 08-MAY-05 18:27:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.25 
Reported by: NWS EMPLOYEE(OFF DUTY)

Reported by NWS employee near Staples and Holly.

Hail in NUECES, TEXAS
From 08-MAY-05 18:28:00 to 08-MAY-05 18:28:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Reported at Cimarron and Yorktown.

Hail in NUECES, TEXAS
From 08-MAY-05 18:30:00 to 08-MAY-05 18:30:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.50 
Reported by: NWS EMPLOYEE(OFF DUTY)

Reported by NWS employee at Airline and Saratoga.

Hail in NUECES, TEXAS
From 08-MAY-05 18:30:00 to 08-MAY-05 18:30:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.75 
Reported by: NWS EMPLOYEE(OFF DUTY)

Reported by NWS employee at Lipes and Staples.

Hail in NUECES, TEXAS
From 08-MAY-05 18:35:00 to 08-MAY-05 18:35:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.00 
Reported by: NWS EMPLOYEE(OFF DUTY)

Reported by NWS employee at Kings Crossing subdivision.

Thunderstorm Wind in JIM WELLS, TEXAS
From 08-MAY-05 17:15:00 to 08-MAY-05 17:15:00 (CST)
Location: ORANGE GROVE
Magnitude: 52 EG
Reported by: GENERAL PUBLIC

Power lines and poles reported blown down.

Hail in JIM WELLS, TEXAS
From 08-MAY-05 17:15:00 to 08-MAY-05 17:15:00 (CST)
Location: ORANGE GROVE
Magnitude: 1.75 
Reported by: GENERAL PUBLIC

Hail in SAN PATRICIO, TEXAS
From 08-MAY-05 16:30:00 to 08-MAY-05 16:30:00 (CST)
Location: MATHIS
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Penny-sized hail with a few golfball-sized hail reported.

Hail in NUECES, TEXAS
From 08-MAY-05 17:02:00 to 08-MAY-05 17:02:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.25 
Reported by: TRAINED SPOTTER

Reported in Calallen, at Leopard and Callicoate.

Hail in LIVE OAK, TEXAS
From 08-MAY-05 16:55:00 to 08-MAY-05 16:55:00 (CST)
Location: LAGARTEO
Magnitude: 0.88 
Reported by: FIRE DEPT/RESCUE SQUAD

Penny to nickle-sized hail reported.

Hail in VICTORIA, TEXAS
From 08-MAY-05 14:40:00 to 08-MAY-05 14:40:00 (CST)
Location: NURSERY
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Hail in VICTORIA, TEXAS
From 08-MAY-05 15:05:00 to 08-MAY-05 15:05:00 (CST)
Location: NURSERY
Magnitude: 1.00 
Reported by: AMATEUR RADIO

Hail in LIVE OAK, TEXAS
From 08-MAY-05 15:02:00 to 08-MAY-05 15:02:00 (CST)
Location: THREE RIVERS
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in VICTORIA, TEXAS
From 08-MAY-05 15:24:00 to 08-MAY-05 15:24:00 (CST)
Location: VICTORIA
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Quarter-sized hail on north side of city.

Hail in LIVE OAK, TEXAS
From 08-MAY-05 15:20:00 to 08-MAY-05 15:20:00 (CST)
Location: RAY PT
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in VICTORIA, TEXAS
From 08-MAY-05 16:15:00 to 08-MAY-05 16:15:00 (CST)
Location: VICTORIA
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Minor hail damage reported to cars.

Thunderstorm Wind in VICTORIA, TEXAS
From 08-MAY-05 16:15:00 to 08-MAY-05 16:15:00 (CST)
Location: VICTORIA
Magnitude: 52 EG
Reported by: TRAINED SPOTTER

Hail in SAN PATRICIO, TEXAS
From 08-MAY-05 17:25:00 to 08-MAY-05 17:25:00 (CST)
Location: SAN PATRICIO
Magnitude: 1.75 
Reported by: NWS EMPLOYEE(OFF DUTY)

Hail in NUECES, TEXAS
From 08-MAY-05 17:45:00 to 08-MAY-05 17:45:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.75 
Reported by: GENERAL PUBLIC

Reported by public in Calallen.

Thunderstorm Wind in NUECES, TEXAS
From 08-MAY-05 17:45:00 to 08-MAY-05 17:45:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 60 EG
Reported by: GENERAL PUBLIC

Hail in NUECES, TEXAS
From 08-MAY-05 17:55:00 to 08-MAY-05 18:00:00 (CST)
Location: ROBSTOWN
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Hail in ARANSAS, TEXAS
From 08-MAY-05 18:09:00 to 08-MAY-05 18:09:00 (CST)
Location: ROCKPORT
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in NUECES, TEXAS
From 08-MAY-05 18:10:00 to 08-MAY-05 18:20:00 (CST)
Location: CRPS CHRISTI INTL AR
Magnitude: 1.50 
Reported by: OFFICIAL NWS OBS.

Measured at NWS Corpus Christi Forecast Office.

Thunderstorm Wind in NUECES, TEXAS
From 08-MAY-05 18:12:00 to 08-MAY-05 18:12:00 (CST)
Location: CRPS CHRISTI INTL AR
Magnitude: 52 MG
Reported by: AWOS,ASOS,MESONET,ETC

Hail in NUECES, TEXAS
From 08-MAY-05 18:19:00 to 08-MAY-05 18:19:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.00 
Reported by: GENERAL PUBLIC

Reported at Ada Wilson Hospital at Staples and Carroll Lane.

Hail in NUECES, TEXAS
From 08-MAY-05 18:20:00 to 08-MAY-05 18:20:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.00 
Reported by: NWS EMPLOYEE(OFF DUTY)

Reported NWS employee at Alameda and Airline.

Hail in NUECES, TEXAS
From 08-MAY-05 18:25:00 to 08-MAY-05 18:30:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.75 
Reported by: GENERAL PUBLIC

Reported in South Corpus Christi at the Lakes Subdivision.

Hail in NUECES, TEXAS
From 08-MAY-05 18:25:00 to 08-MAY-05 18:25:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 0.88 
Reported by: NWS EMPLOYEE(OFF DUTY)

Reported by NWS employee at Everhart and Saratoga.

Hail in NUECES, TEXAS
From 08-MAY-05 18:37:00 to 08-MAY-05 18:37:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.00 
Reported by: TRAINED SPOTTER

Reported at Flour Bluff Drive and SPID.

Hail in NUECES, TEXAS
From 08-MAY-05 18:40:00 to 08-MAY-05 18:40:00 (CST)
Location: CORPUS CHRISTI
Magnitude: 1.75 
Reported by: TRAINED SPOTTER

Reported at Everheart and Yorktown.